Improvement in spring-vehicles



UNITED STATES PATENT OFFICE.

JOHN M. MILLER, or GMINGINNATI, OHIO.

IMPROVEMENT IN SPRING-VEHICLES.

Specification forming part of Letters Patent No. 134,916, dated January 14, 1873.

To all whom it may concern:

Be it known that I, JOHN M. MILLER, of Cincinnati, Hamilton county, Ohio, have invented an Improvement in Spring-Vehicles, of which the following is a specification:

General Description.

Figure 1 is a perspective view of a "carriage-part embodying my invention. Fig. 2

represents aportion of a similar, but slightly modified, carriage-part.

A rear axle-tree, A, of customary form, is

connected to the head-block B by means of two side bars or reaches, 0 O, and preferably, in addition to these side reaches, bya central reach or perch, D, which perch may be mortised into said axle-tree and head-block in the usual-way. The reaches 0 O are attached to the axle-tree A and to the extremities of the head-block B by means of clips E, or by other suitable fastening. The reaches 0 O are thickened at their mid-lengths for the support and attachment, by means of clips G, of elliptical metallic springs H H, which support and have attached to them, by clips I, side spring-bars J J, whose extremities support and have attached to them, by bolts K, metallic halfsprings L L, which are bolted, M, by their middles, to the under side of any bed or body, N. The members 0 O J J are of ash, hickory, or other tough and elastic timber, and, in conjunction with the metallic portions H H and L L, are of such form and proportions,

and are so united rigidly to each other and to the rear axle, the head-block, and the body, respectively, as to constitute a single highlyeifective spring whose most yielding portion is nearest the body. The front half of this com positespring may be considered to be composed of two yielding members, 1 and 2, each above six feet long, and having in common, a fixed point, 3, and a movable point or extremity, 4:. The entirely open space between the head-block B below and the half-spring L above, While making a comparatively low body compatible with great freedom of vertical motion, imparts also an exceedingly light and graceful appearance to the vehicle.

It will be seen that the yielding metallic members L and L, beside acting as springs, also discharge the function of body'irons, (body-loops.)

The above-described preferred form of my improvement may be varied in non-essential particulars. For example: The membersOand Omay be, as in Fig. 2, attached directly to the members J and J"withont the intervention of the metallic portions H and H. The reaches and head-block may constitute a single bent wooden bar. The recurved extremities of the springs L L may be omitted. (See also Fig. 2.)

Claim.

I claim as new and of my invention The combination of the transverse springs L L, spring-bars J J, lower spring-bars or reaches 0 G, axle A, and bolster B, all constructed and arranged to operate as and for the purposes specified.

In testimony of which invention 1 hereunto set my hand.

Attest: JOHN M. MILLER.

GEo. H. KNIGHT, J AMES H. LAYMAN. 

